package book.test04;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

import java.io.IOException;

public  class MRMapper extends Mapper<LongWritable, Text, Text, IntWritable> {
    IntWritable v = new IntWritable(1);
    Text k = new Text();

    @Override
    protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
        //分割
        String[] data = value.toString().split(",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)", -1);
        //找到学历信息写出到Reduce
        k.set(data[14]);
        context.write(k, v);
    }
}